Habits and sentiment are key psychological behaviors in asset pricing. This paper studies the interactive impacts of sentiment and habits on asset pricing using the Campbell and Cochrane 1999 habit model as a framework model. A positive sentiment shock emanating from firms is modeled in the...

This study explores the nexus between investors’ sentiments and herding behavior toward the market consensus in the U.S. and Europe stock markets from January, 2005 to April, 2021. We document strong evidence of herding during periods characterized by high level of sentiments. Our results...

Based on intraday data for a large cross section of individual stocks, we find that the risk component of stock returns exhibits strong intraday momentum, and this pattern holds from previous market close to 10:00, and every half hour since then until market close at 16:00. Strikingly, the...

Using a very large data set with more than 9,700 stocks listed on NYSE, AMEX and NASDAQ, we analyze overnight price jumps and report short-term investor overreaction to information shocks and document return reversal and predictability up to five days. For negative and positive overnight jumps,...

Findings from brain sciences show that the brain must first optimize on its own internal resources before seeking to optimize on the resources available in the external world. We show that this modest change is perspective, from resource-constrained humans to resource-constrained brains,...

Much attention is paid to portfolio variance, but skewness is also important for both portfolio design and asset pricing. We revisit the empirical research on systematic skewness that we initiated 25 years ago. In an out-of-sample test, we find that the risk premium associated with skewness is...

We highlight herding of investors as one major risk factor that is typically ignored in statistical approaches to portfolio modelling and risk management. Our survey focuses on smart-beta investing where such methods and investor herding seem particularly relevant but its negative effects have...

We link a seemingly biased trading behavior to equilibrium asset prices. U.S. equity mutual fund managers tend to sell both their big winners and big losers. This selling pressure pushes down current prices and leads to higher future returns; aggregating across funds, we nd that securities for...

Greed has been shown to be an important economic motive. Both the popular press as well as scientific papers have mentioned questionable practices by greedy bankers and investors as one of the root causes of the 2008 global financial crisis. In spite of these suggestions, there is as of yet no...